CN1948014A - Ink cartridge having filtering means - Google Patents
Ink cartridge having filtering means Download PDFInfo
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- CN1948014A CN1948014A CN 200610123103 CN200610123103A CN1948014A CN 1948014 A CN1948014 A CN 1948014A CN 200610123103 CN200610123103 CN 200610123103 CN 200610123103 A CN200610123103 A CN 200610123103A CN 1948014 A CN1948014 A CN 1948014A
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- ink
- filter
- print cartridge
- storage chamber
- supply port
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Abstract
An ink box with filter is composed of an ink storage cavity, an air hole with control valve, a filter at the bottom of said ink storage cavity and made of millipore filtering material, an ink supplying port, and an ink supplying channel. Its advantages are precise flow control, no ink leakage and blocking, and high printing quality.
Description
Technical field
The present invention relates to be used for supplying the print cartridge of the band filter of ink to recording head for ink-jet printer.
Background technology
For satisfying people to print quality and the more and more higher demand of print speed, ink-jet printer obtains sustainable development in constantly improving, caused the increase of ink-jet pipe number of nozzles and the reducing of nozzle diameter of ink jet print head, the print cartridge that this inevitable requirement adapts to it has high ink supply performance, can provide that a large amount of inks, ink are difficult for leaking to ink jet print head, stifled ink jet print head and can store as much as possible ink in limited space.
In order to address this problem, in the ink storage chamber of print cartridge, use porous member to receive and storage ink usually, as polyamine fat sponge, its mechanism of action is the capillary force sticking ink by porous member.But itself just occupies certain space this porous member, and because of its capillary force and space must cause the part ink not to be used, and is not only uneconomical, also contaminated environment.
In order to address this problem, provided a kind of print cartridge among the Chinese patent application CN03102633.8, have the ink supply port that ink storage area and this ink storage area be communicated with and follow consumption of ink and the negative pressure opened produces mechanism, wherein: the ink storage area is divided into the isolated ink storage area, top of air with to ink storage area, the bottom of atmosphere opening, and ink storage area, top and ink storage area, bottom communicate with each other by the inhalation flow passage; Negative pressure produces mechanism and is accommodated in the ink storage area, top; Negative pressure produces mechanism and comprises: place between ink storage area, top and the ink supply port, the ink supply flow channel of the ink flow path that formation and ink supply port are communicated with forms member; With the elastic component that places in the ink flow path formation member, this member has first surface and second surface, first surface forms first flow channel that forms in the member by the ink supply flow channel and bears pressure in the ink storage area, second surface forms second flow channel that forms in the member by the ink supply flow channel and bears pressure in the ink supply port, thus make elastic component can be under the effect of elastic force and the opening portion of ink flow path contact and separate; And follow the pressure in the ink supply port, elastic component is moved opening the opening portion of ink flow path, thereby to ink supply port supply ink.
Porous member sticking ink is not adopted in this invention, change and make elastic component with the contact of ink storage area ink-feed channel projection with separate but utilize negative pressure to produce the pressure of following in the mechanism in the ink supply port, thereby reaching elastic component is moved and separates with ink storage area ink-feed channel projection to open ink flow path to ink supply port supply ink, be moved to contact with ink storage area ink-feed channel projection with elastic component and make ink be difficult for leaking, and effectively utilized the storage area from the ink supply port to close ink flow path.
In this invention, elastic component is to be formed by the high resiliency polymeric material, as silica gel, the elasticity of itself is subjected to the influence of hardness very big, can the imagination can bring certain difficulty to production, simultaneously, in the negative pressure effect in not bearing the ink supply port, this elastic component is by the bias power that acts on the spring generation on the second surface it to be contacted to close ink flow path to make ink be difficult for leaking from the ink supply port with ink storage area ink-feed channel projection, the bias power size that spring produces is not only relevant with the coefficient of elasticity of spring itself, also relevant with decrement, therefore, the position of the supporting member of spring must accurate positioning during assembling.They are two years old, the elastic component first surface contacts with ink storage area ink-feed channel projection under the effect of the bias power that spring produces, if ink storage area ink-feed channel projection sectional area is little, then projection will certainly embed in the elastic component, even may pierce through elastic component, make ink arrive the opposite side of elastic component and lose its function; If ink storage area ink-feed channel projection sectional area is big, then elastic component contacts with ink storage area ink-feed channel projection under the effect of the bias power that spring produces, and its contact-making surface is bound to form one deck ink film when filling ink, thereby make the bigger static pressure of generation between elastic component and the ink storage area ink-feed channel projection, might be able to not follow the negative pressure in the ink supply port and elastic component is separated with ink storage area ink-feed channel projection cause ink supply not smooth, this also be this print cartridge to rock before use several destroy its static pressure printing effects down just can better reason.They are three years old; in case when beginning under the negative pressure effect to recording head for ink-jet printer supply ink; all is a macroscopic path from the ink storage area to the whole ink-feed channel the ink supply port; be that sectional dimension is far longer than the ink granularity; when the print cartridge raw material have the dust that does not eliminate or fall into dust aborning accidentally; also or print cartridge under long-term storage ink owing to the impurity such as cotton-shaped deposit that produce of cohesion all can with no options flow into recording head for ink-jet printer, thereby cause the record head obstruction.
Summary of the invention
The purpose of this invention is to provide a kind of print cartridge that has filter, described filtration device structure is simple, cost is low, easy to manufacture, precision and reliability height, allow record head from print cartridge consume ink at a high speed, ink channel remains unlatching and but can well prevent ink leakage, and can prevent effectively that the impurity in the ink from entering recording head for ink-jet printer.
The objective of the invention is to realize by following proposal.
Print cartridge of the present invention comprises: an ink storage chamber; One places the passage of the band application valve body that the ink storage chamber top is communicated with atmosphere; One filter, it is positioned at the bottom of ink storage chamber; One ink supply port is hidden in print cartridge inside; One connects the ink-feed channel of filter and ink supply port; One side cover.
Be provided with dividing plate in the ink storage chamber in the print cartridge of the present invention, can effectively eliminate because of print cartridge moves back and forth with ink-jet printer word car making the ink in the ink storage chamber shake the bubble that produces, avoid the ink supply port to supply ink untimely phenomenon to recording head for ink-jet printer because of what the suction bubble caused.The described application valve body that places the ink storage chamber top to be communicated with atmosphere, application valve body moves down and opens passage when print cartridge is put into printer, and gas enters ink storage chamber with balance ink storage chamber internal pressure by pore; Application valve body closes passage in the effect returning to customs next time of spring force when print cartridge takes out from printer, prevents ink from passage volatilization and leakage, and the while also avoids impurity to enter ink storage chamber from passage.Print cartridge middle filtrator of the present invention is made of the micropore filter material of aperture less than 1 micron, the static pressure that the force of sliding friction that makes ink pass through micropore because of the existence of micropore produces filter greater than the ink in the ink storage chamber, guarantee under the quiescent conditions of non-printing, though ink channel remains unlatching, ink in the ink storage chamber but can't enter the ink supply port by filter and (have the Brownian movement of microcosmic, but can not produce pressure to the ink supply port), thus the leakage of ink prevented.Print cartridge middle filtrator of the present invention is connected to form a linker by ink-feed channel and ink supply port, according to Pascal's law, negative pressure certainty generation one in filter that described ink supply port produces because of consumption of ink meets the active force of Pascal's law, when this active force (big I as required accurately design) greater than ink by micropore force of sliding friction and during the difference of the static pressure that filter is produced of the ink in the ink storage chamber, ink in the ink storage chamber will enter the ink supply port by filter and ink-feed channel, thereby to recording head for ink-jet printer supply ink.In addition; according to the present invention; thereby ink must just can enter the ink supply port by millipore filter and enter recording head for ink-jet printer, has so just effectively prevented that the impurity that may exist in the ink from entering recording head for ink-jet printer, and record head is unlikely to be stopped up by impurity thereby protected.Simultaneously, produce a little negative pressure at the ink supply port in the print cartridge of the present invention and can in filter, produce an active force change ink flowrate that amplifies in proportion, thereby can accurately control ink feed and a large amount of ink supply as required.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 shows the decomposition diagram of a print cartridge according to one embodiment of present invention;
Fig. 2 shows from the view of the print cartridge of ink storage chamber unilateral observation;
Fig. 3 shows the cutaway view of filter and ink-feed channel.
The specific embodiment
Below, the embodiment that illustrates is with reference to the accompanying drawings discussed details of the present invention.
Referring to accompanying drawing 1-3, print cartridge of the present invention comprises a housing 1; One ink storage chamber 2; Dividing plate 3 is divided into several parts that are interconnected with ink storage chamber 2, effectively eliminates the bubble that moves back and forth the ink concussion in the ink storage chamber is produced with ink-jet printer word car because of print cartridge; One places the passage 6 of the band application valve body that the ink storage chamber top is communicated with atmosphere; Spring 4 and elastic component 5 constitute an application valve body, and control passage 6 is communicated with or partition with atmosphere; One is positioned at the filter 10 of ink storage chamber 2 bottoms, and its inlet is installed an aperture less than 1 micron micro porous filtration member 11, and it can be used to prevent the leakage of ink and intercepts impurity in the ink; One places housing 1 bottom and is hidden in the ink supply port 7 of ink storage chamber 2 inside; Ink-feed channel 9 firmly is connected filter 10 with ink supply port 7 with joint 8; One side cover 12.Filter 10, ink-feed channel 9, joint 8 and ink supply port 7 constitute a linker.When starting the printhead (not shown), suction spindle (not shown) on the printhead sucks ink from ink supply port 7, pressure in the ink supply port 7 descends along with being sucked out of ink, form a negative pressure, produce a negative pressure, generation one in filter 10 meets the active force of Pascal's law according to Pascal's law certainty, when this active force greater than ink by micropore force of sliding friction and during the difference of the static pressure that filter 10 is produced of the ink in the ink storage chamber 2, ink in the ink storage chamber 2 will enter ink supply port 7 by filter 10 and ink-feed channel 9, thereby supply ink continuously to recording head for ink-jet printer, its flow can design as required, when the ink of the ink that is sucked out in the ink supply port 7 by 9 supplies of filter 10 and ink-feed channel obtains replenishing, negative pressure in the ink supply port 7 disappears, additional forces in the filter 10 is zero, because the force of sliding friction of ink inside of the present invention by the micropore of micro porous filtration member 11 is greater than the static pressure of the ink in the ink storage chamber to the filter generation, so the ink in the ink storage chamber 2 just can not enter ink supply port 7 by filter 10 and ink-feed channel 9, though ink channel remains unlatching, but ink is no longer mobile, be in halted state, carrying out along with printer work, pressure in the ink supply port 7 begins to descend, so circulation, ink flows in ink-feed channel and stops, thereby keeps the timely and appropriate discovery supply of ink to printhead.
Scope of the present invention is not limited in the foregoing description, and every any variation and modification of utilizing principle of the present invention to carry out in the present technique field all belongs to protection scope of the present invention.
Claims (8)
1, a kind of print cartridge comprises:
One ink storage chamber;
The passage of one band application valve body, it is placed in the ink storage chamber top, and the opening and closing by application valve body make ink storage chamber and external communications and disconnection;
One filter, the bottom that it is positioned at ink storage chamber, be used for blocking-up ink under the condition of non-printing flow and the condition printed under ink flowed and filter ink;
One ink supply port, it is hidden in print cartridge inside;
One ink-feed channel is used to connect ink supply port and filter;
Wherein, described ink supply port, described ink-feed channel and described filter are connected to form linker, when the negative pressure of described ink supply port internal cause consumption of ink generation reaches certain value, the force of sliding friction that the active force that produces in the filter overcomes by micropore makes ink by the ink storage chamber inflow filter, flow into the ink supply port by ink-feed channel again, thereby to recording head for ink-jet printer supply ink.
2, print cartridge as claimed in claim 1 is characterized in that in the described ink storage chamber dividing plate being arranged, and is the loculus that is interconnected by separator lined.
3, print cartridge as claimed in claim 1 is characterized in that the passage of described band application valve body, and its application valve body is made up of spring and elastic component.
4, print cartridge as claimed in claim 1, it is characterized in that described filter is made of the micropore filter material of aperture less than 1 micron, the static pressure that the force of sliding friction that makes ink pass through micropore because of the existence of micropore produces filter greater than the ink in the ink storage chamber is blocked ink and is flowed; The active force that meets Pascal's law that the negative pressure that produces because of ink supply port consumption of ink produces in filter overcomes the force of sliding friction of ink by micropore flows ink, thereby to recording head for ink-jet printer supply ink.
5, print cartridge as claimed in claim 1 is characterized in that described filter makes the ink by it obtain filtering because of the aperture is small.
6, print cartridge as claimed in claim 1 is characterized in that described ink supply port is hidden in print cartridge inside, forms with described ink storage chamber is whole.
7, print cartridge as claimed in claim 1 is characterized in that described ink-feed channel is thin and long pipeline, is made by elastomeric material.
8, print cartridge as claimed in claim 1 is characterized in that described filter forms separately, is placed in the bottom of ink storage chamber regularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123103 CN1948014A (en) | 2006-10-27 | 2006-10-27 | Ink cartridge having filtering means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123103 CN1948014A (en) | 2006-10-27 | 2006-10-27 | Ink cartridge having filtering means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1948014A true CN1948014A (en) | 2007-04-18 |
Family
ID=38017679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610123103 Pending CN1948014A (en) | 2006-10-27 | 2006-10-27 | Ink cartridge having filtering means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1948014A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372175B (en) * | 2007-08-24 | 2010-12-08 | 研能科技股份有限公司 | Printing ink cartridge for continuous ink supply system |
| WO2011022911A1 (en) * | 2009-08-24 | 2011-03-03 | 珠海中润靖杰打印机耗材有限公司 | Ink cartridge for inkjet printer |
| CN102101388B (en) * | 2009-12-21 | 2013-01-16 | 泓瀚科技股份有限公司 | Ink box capable of continuously supplying ink for long time |
| CN107933097A (en) * | 2016-10-12 | 2018-04-20 | 精工爱普生株式会社 | Liquid container |
-
2006
- 2006-10-27 CN CN 200610123103 patent/CN1948014A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372175B (en) * | 2007-08-24 | 2010-12-08 | 研能科技股份有限公司 | Printing ink cartridge for continuous ink supply system |
| WO2011022911A1 (en) * | 2009-08-24 | 2011-03-03 | 珠海中润靖杰打印机耗材有限公司 | Ink cartridge for inkjet printer |
| GB2485321A (en) * | 2009-08-24 | 2012-05-09 | Zhu Hai Nat Resources & Jingjie Imaging Products Co Ltd | Ink cartridge for inkjet printer |
| CN101992602B (en) * | 2009-08-24 | 2012-09-19 | 珠海中润靖杰打印机耗材有限公司 | Ink cartridge for jet printer |
| GB2485321B (en) * | 2009-08-24 | 2014-04-02 | Zhu Hai Nat Resources & Jingjie Imaging Products Co Ltd | Cartridge for inkjet printer |
| CN102101388B (en) * | 2009-12-21 | 2013-01-16 | 泓瀚科技股份有限公司 | Ink box capable of continuously supplying ink for long time |
| CN107933097A (en) * | 2016-10-12 | 2018-04-20 | 精工爱普生株式会社 | Liquid container |
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